7139c3245483a216629937106eb65d42c5b6c89e
[mesa.git] / src / etnaviv / drm / etnaviv_cmd_stream.c
1 /*
2 * Copyright (C) 2014-2015 Etnaviv Project
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 * Christian Gmeiner <christian.gmeiner@gmail.com>
25 */
26
27 #include <assert.h>
28
29 #include "etnaviv_drmif.h"
30 #include "etnaviv_priv.h"
31
32 static pthread_mutex_t idx_lock = PTHREAD_MUTEX_INITIALIZER;
33
34 static void *grow(void *ptr, uint32_t nr, uint32_t *max, uint32_t sz)
35 {
36 if ((nr + 1) > *max) {
37 if ((*max * 2) < (nr + 1))
38 *max = nr + 5;
39 else
40 *max = *max * 2;
41 ptr = realloc(ptr, *max * sz);
42 }
43
44 return ptr;
45 }
46
47 #define APPEND(x, name) ({ \
48 (x)->name = grow((x)->name, (x)->nr_ ## name, &(x)->max_ ## name, sizeof((x)->name[0])); \
49 (x)->nr_ ## name ++; \
50 })
51
52 static inline struct etna_cmd_stream_priv *
53 etna_cmd_stream_priv(struct etna_cmd_stream *stream)
54 {
55 return (struct etna_cmd_stream_priv *)stream;
56 }
57
58 drm_public struct etna_cmd_stream *etna_cmd_stream_new(struct etna_pipe *pipe,
59 uint32_t size,
60 void (*reset_notify)(struct etna_cmd_stream *stream, void *priv),
61 void *priv)
62 {
63 struct etna_cmd_stream_priv *stream = NULL;
64
65 if (size == 0) {
66 ERROR_MSG("invalid size of 0");
67 goto fail;
68 }
69
70 stream = calloc(1, sizeof(*stream));
71 if (!stream) {
72 ERROR_MSG("allocation failed");
73 goto fail;
74 }
75
76 /* allocate even number of 32-bit words */
77 size = ALIGN(size, 2);
78
79 stream->base.buffer = malloc(size * sizeof(uint32_t));
80 if (!stream->base.buffer) {
81 ERROR_MSG("allocation failed");
82 goto fail;
83 }
84
85 stream->base.size = size;
86 stream->pipe = pipe;
87 stream->reset_notify = reset_notify;
88 stream->reset_notify_priv = priv;
89
90 return &stream->base;
91
92 fail:
93 if (stream)
94 etna_cmd_stream_del(&stream->base);
95
96 return NULL;
97 }
98
99 drm_public void etna_cmd_stream_del(struct etna_cmd_stream *stream)
100 {
101 struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
102
103 free(stream->buffer);
104 free(priv->submit.relocs);
105 free(priv->submit.pmrs);
106 free(priv);
107 }
108
109 static void reset_buffer(struct etna_cmd_stream *stream)
110 {
111 struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
112
113 stream->offset = 0;
114 priv->submit.nr_bos = 0;
115 priv->submit.nr_relocs = 0;
116 priv->submit.nr_pmrs = 0;
117 priv->nr_bos = 0;
118
119 if (priv->reset_notify)
120 priv->reset_notify(stream, priv->reset_notify_priv);
121 }
122
123 drm_public uint32_t etna_cmd_stream_timestamp(struct etna_cmd_stream *stream)
124 {
125 return etna_cmd_stream_priv(stream)->last_timestamp;
126 }
127
128 static uint32_t append_bo(struct etna_cmd_stream *stream, struct etna_bo *bo)
129 {
130 struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
131 uint32_t idx;
132
133 idx = APPEND(&priv->submit, bos);
134 idx = APPEND(priv, bos);
135
136 priv->submit.bos[idx].flags = 0;
137 priv->submit.bos[idx].handle = bo->handle;
138
139 priv->bos[idx] = etna_bo_ref(bo);
140
141 return idx;
142 }
143
144 /* add (if needed) bo, return idx: */
145 static uint32_t bo2idx(struct etna_cmd_stream *stream, struct etna_bo *bo,
146 uint32_t flags)
147 {
148 struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
149 uint32_t idx;
150
151 pthread_mutex_lock(&idx_lock);
152
153 if (!bo->current_stream) {
154 idx = append_bo(stream, bo);
155 bo->current_stream = stream;
156 bo->idx = idx;
157 } else if (bo->current_stream == stream) {
158 idx = bo->idx;
159 } else {
160 /* slow-path: */
161 for (idx = 0; idx < priv->nr_bos; idx++)
162 if (priv->bos[idx] == bo)
163 break;
164 if (idx == priv->nr_bos) {
165 /* not found */
166 idx = append_bo(stream, bo);
167 }
168 }
169 pthread_mutex_unlock(&idx_lock);
170
171 if (flags & ETNA_RELOC_READ)
172 priv->submit.bos[idx].flags |= ETNA_SUBMIT_BO_READ;
173 if (flags & ETNA_RELOC_WRITE)
174 priv->submit.bos[idx].flags |= ETNA_SUBMIT_BO_WRITE;
175
176 return idx;
177 }
178
179 static void flush(struct etna_cmd_stream *stream, int in_fence_fd,
180 int *out_fence_fd)
181 {
182 struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
183 int ret, id = priv->pipe->id;
184 struct etna_gpu *gpu = priv->pipe->gpu;
185
186 struct drm_etnaviv_gem_submit req = {
187 .pipe = gpu->core,
188 .exec_state = id,
189 .bos = VOID2U64(priv->submit.bos),
190 .nr_bos = priv->submit.nr_bos,
191 .relocs = VOID2U64(priv->submit.relocs),
192 .nr_relocs = priv->submit.nr_relocs,
193 .pmrs = VOID2U64(priv->submit.pmrs),
194 .nr_pmrs = priv->submit.nr_pmrs,
195 .stream = VOID2U64(stream->buffer),
196 .stream_size = stream->offset * 4, /* in bytes */
197 };
198
199 if (in_fence_fd != -1) {
200 req.flags |= ETNA_SUBMIT_FENCE_FD_IN | ETNA_SUBMIT_NO_IMPLICIT;
201 req.fence_fd = in_fence_fd;
202 }
203
204 if (out_fence_fd)
205 req.flags |= ETNA_SUBMIT_FENCE_FD_OUT;
206
207 ret = drmCommandWriteRead(gpu->dev->fd, DRM_ETNAVIV_GEM_SUBMIT,
208 &req, sizeof(req));
209
210 if (ret)
211 ERROR_MSG("submit failed: %d (%s)", ret, strerror(errno));
212 else
213 priv->last_timestamp = req.fence;
214
215 for (uint32_t i = 0; i < priv->nr_bos; i++) {
216 struct etna_bo *bo = priv->bos[i];
217
218 bo->current_stream = NULL;
219 etna_bo_del(bo);
220 }
221
222 if (out_fence_fd)
223 *out_fence_fd = req.fence_fd;
224 }
225
226 drm_public void etna_cmd_stream_flush(struct etna_cmd_stream *stream)
227 {
228 flush(stream, -1, NULL);
229 reset_buffer(stream);
230 }
231
232 drm_public void etna_cmd_stream_flush2(struct etna_cmd_stream *stream,
233 int in_fence_fd,
234 int *out_fence_fd)
235 {
236 flush(stream, in_fence_fd, out_fence_fd);
237 reset_buffer(stream);
238 }
239
240 drm_public void etna_cmd_stream_finish(struct etna_cmd_stream *stream)
241 {
242 struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
243
244 flush(stream, -1, NULL);
245 etna_pipe_wait(priv->pipe, priv->last_timestamp, 5000);
246 reset_buffer(stream);
247 }
248
249 drm_public void etna_cmd_stream_reloc(struct etna_cmd_stream *stream,
250 const struct etna_reloc *r)
251 {
252 struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
253 struct drm_etnaviv_gem_submit_reloc *reloc;
254 uint32_t idx = APPEND(&priv->submit, relocs);
255 uint32_t addr = 0;
256
257 reloc = &priv->submit.relocs[idx];
258
259 reloc->reloc_idx = bo2idx(stream, r->bo, r->flags);
260 reloc->reloc_offset = r->offset;
261 reloc->submit_offset = stream->offset * 4; /* in bytes */
262 reloc->flags = 0;
263
264 etna_cmd_stream_emit(stream, addr);
265 }
266
267 drm_public void etna_cmd_stream_perf(struct etna_cmd_stream *stream, const struct etna_perf *p)
268 {
269 struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
270 struct drm_etnaviv_gem_submit_pmr *pmr;
271 uint32_t idx = APPEND(&priv->submit, pmrs);
272
273 pmr = &priv->submit.pmrs[idx];
274
275 pmr->flags = p->flags;
276 pmr->sequence = p->sequence;
277 pmr->read_offset = p->offset;
278 pmr->read_idx = bo2idx(stream, p->bo, ETNA_SUBMIT_BO_READ | ETNA_SUBMIT_BO_WRITE);
279 pmr->domain = p->signal->domain->id;
280 pmr->signal = p->signal->signal;
281 }